Improvement in oil-ejectors



WLR. GREENLEAP.

OIL EJEGTOR.

No. 48,170. Patented June 13, 1865.

UNITED STATES.

PATENT OFFICE.

WM. R. GREENLEAF, OF BUFFALO, NEW-YORK.

IM PROVEM ENT l N l L-EJECTQRS.

To albwhom it may concern:

Be it knowrijthat I, \NILLIAM R. GREEN- LEAF, of the city of Buffalo, county. of Erie,and State of New York, have invented a new and Improved MethodofltaisiugPetroleum Oiland other Liquids fromArtesian or Deep Wells; and I do herebydeclare that the following is a full and exact description thereof, reference beinghad to the accompanying drawin gs,making a part of this .specific'atiomin which- Figure I is a vert-ical'section of my improved apparatus used for such purpose. Fig. II is a transverse section on line a 1 of Fig. 'I. Fig. III is a transverse section on line a. 2 of Fig. I.

a Fig. 1V is a transverse section on line a 30f Fig. I. Fig. V is an elevation.- Fig. V1 is a modification of the apparatus in which each ejector is provided with an iedependent-steam or air pipe. Fig. VII is a transverse section on lined e of'FigVI.

The nature of this invention consists in placing and using any desired number'of ejectors in one'well at nearly equal intervals or distance apart, in combination with'chambers or reservoirs so arranged as to divide the well into as many compartments and the column of liquid to be ejected into as many sections asthere are ejectors used in the arrangement, and thereby reducing the requisite pressure of steam or air nearly in proportion to the number of sections into which theliquid is divided and of ejectors used, and also greatly facilitating the sure and perfect operation of the ejecting-instruments.

Letters of like name and kind refer to like parts in each of the figures.

A represents a chamber or reservoir, which maybe made of sectionsof tubing of suitable diameter and length, and of sufficient-capacity:

to contain an ejector or other similar instrument and its requisite induction and eduction pipes, and still leave suflicient room therein-to form a reservoir whose induction is the discharge-pipeof the ejector below it, and whose eduction is the ejector within it. One, two, or more of these chambers are so located in the well, and at suchdistance from each other, as to divide the rising column of liquid into sections of any desired length or height.

0 represents an ejector, having openiugs C for the ingress ot oil or other'liquid into the instrument.

D represents a steam or air pipe, connected with a steam-boiler or air-pump at the surface,

and from thence passing down into the well and through each chamber, and having a branch pipebending upwardly and connecting with each ejector within its respective chamber, as shown at d so that steam or compressed air may be transmitted to each ejector within the chambers, and also to the ejector located at the bottom of the well. .This steamer air pipe D is of such internal diameter that it will supply all of the ejectors with steam or air ofnearly equal pressure.

Theeductipn or'discharge pipe is represented at E, which conducts the oil or other fluid theejector at the bottemofthewell into the chamber next above it, and thence it is continued upwardly through each successive chamher and ejector'into a suitable tank or reservoir at the surface. I contemplate, if necessary, using valves for the purpose of graduatin g the amount of steam or air admitted to each I ejector. In Fig. VI the construction is repre-. sented as slightly modified by the use of separate steam or air ipes D D for each ejector,

each independent 0 the other, and conducting steam or air directly into the ejector with which it is connected.

F is a ventilating-tube, leading from the chamber upwardly to the surface.

Operation: The ejectors, chambers, steam and air-tubes, and ventilating-tubes being constructed and connected together, substantially as herein described and shown, are placed in the well from which oil or other liquid is to' be elevated. The oil or other liquid will enter from 'the well into the ejector located nearest to the bottom of the well through'the openings 0 and will fill the ejectors and all the pipes and chambers up to the water-level near the surface, the ejectors in the chambers being also provided with ingress-openings C the same.

by the ejeetors and chambers, the first section from the surface being two hundred feet, and the other two sections one hundred and ninetyfive feet respectively; The hydrostatic pressureIat the bottom of the first section will be about "ninety pounds -to the inch, and at the bottom of the second section about one hundred and seventy-seven pounds, and at the bottom of the third section about two hundred and sixty-five pounds which,,if in one undivided column, would require apressure of three hundred pounds to eject the liquid with one ejector, but with myimprovement it will-require a pneumatic or steam pressure of only one hundred pounds to the inch to force the liquid out of the steam or air pipe do wn to the first ejector and to put that into operation. Now .it will be readily seen that when the upper or first section of liquid is exhausted down ninety-five feet then the hydrostatic pressure at the bottom of the second section will be reduced from one hundred and -seventy. seven pounds to the same that it was in the commencement at the bottom of the first sectionninety po'unds'und therefore the same pressure-one hundred pounds-will in the same manner start the second ejector-into operation, and thus keep the first chamber and ejector supplied with liquid, and so on down through each successive section until all the ejectors are at work and the liquid ejected from the bottom of the well with a pressure of only one hundred pounds to the inch, whereas without this arrangem'entit would require th ree hundred pounds to eject the liquid.

I do not claim, broadly, herein the principle of applying and using steam and compressed air by appropriate mechanism for the purpose of raising oil or other liquids from Artesian or deep wells, having made such aclaim in a former application, which is now pending in the office and undetermined; but

What I do claim, and desire to secure by these Letters Patent, is

.The combination of the ejector or ejectors G, or equivalent, with one, two, three, or more compartments or chambers,A, for the purpose and substantially as described.

' W. R. GREEN LEAF.

Witnesses:

E. B. FORBUSH, GEO. W. WALLAoE. 

